Questions on Metric Unit Conversions
Multiple-Choice Questions – Metric Unit Conversions
1. How many millimeters are in 1 centimeter?
A) 0.1 mm
B) 10 mm
C) 100 mm
D) 1 mm
E) 0.01 mm
2. How many centimeters are in 1 meter?
A) 1000 cm
B) 10 cm
C) 100 cm
D) 1 cm
E) 10000 cm
3. Convert 2.5 kilometers to meters.
A) 250 m
B) 25 m
C) 2500 m
D) 2.5 m
E) 0.25 m
4. How many grams are in 1.2 kilograms?
A) 1200 g
B) 12 g
C) 0.12 g
D) 120 g
E) 100 g
5. Convert 5,000 milligrams to grams.
A) 5 g
B) 0.5 g
C) 50 g
D) 0.005 g
E) 500 g
6. How many liters are in 2500 milliliters?
A) 0.25 L
B) 2.5 L
C) 25 L
D) 0.0025 L
E) 5 L
7. What is the metric prefix for 1,000 units?
A) centi-
B) milli-
C) kilo-
D) mega-
E) nano-
8. Convert 0.75 meters to centimeters.
A) 7.5 cm
B) 0.075 cm
C) 750 cm
D) 75 cm
E) 705 cm
9. What is 0.005 kilometers in meters?
A) 500 m
B) 5 m
C) 0.5 m
D) 50 m
E) 0.005 m
10. Convert 3.6 liters to milliliters.
A) 36 mL
B) 360 mL
C) 3600 mL
D) 36,000 mL
E) 3.6 mL
11. How many kilometers are in 1,500 meters?
A) 1.5 km
B) 150 km
C) 0.15 km
D) 0.015 km
E) 15 km
12. What is the metric prefix for 0.01?
A) kilo-
B) milli-
C) centi-
D) micro-
E) deci-
13. Convert 4.5 kilograms to grams.
A) 0.45 g
B) 450 g
C) 4500 g
D) 45 g
E) 4.5 g
14. How many milliliters are in 0.02 liters?
A) 2 mL
B) 20 mL
C) 200 mL
D) 0.002 mL
E) 0.2 mL
15. Convert 850 centimeters to meters.
A) 8.5 m
B) 85 m
C) 0.085 m
D) 0.85 m
E) 8500 m
16. What is the value of 1 hectometer in meters?
A) 10 m
B) 100 m
C) 1000 m
D) 0.1 m
E) 1 m
17. Convert 0.003 liters to milliliters.
A) 3 mL
B) 0.3 mL
C) 30 mL
D) 0.03 mL
E) 3000 mL
18. How many milligrams are in 0.06 grams?
A) 0.6 mg
B) 60 mg
C) 600 mg
D) 6 mg
E) 0.006 mg
19. What is the value of 1 megameter in meters?
A) 1,000 m
B) 100,000 m
C) 10,000 m
D) 1,000,000 m
E) 1000 km
20. Convert 2.75 kilograms to milligrams.
A) 2750 mg
B) 275,000 mg
C) 2,750,000 mg
D) 275,000,000 mg
E) 27,500 mg
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Answer Key with Explanations
1. B) 10 mm
1 cm = 10 mm.
2. C) 100 cm
1 meter = 100 centimeters.
3. C) 2500 m
1 km = 1000 m → 2.5 × 1000 = 2500 m.
4. A) 1200 g
1 kg = 1000 g → 1.2 × 1000 = 1200 g.
5. A) 5 g
1000 mg = 1 g → 5000 ÷ 1000 = 5 g.
6. B) 2.5 L
1000 mL = 1 L → 2500 ÷ 1000 = 2.5 L.
7. C) kilo-
Kilo- = 1000 times the base unit.
8. D) 75 cm
1 m = 100 cm → 0.75 × 100 = 75 cm.
9. B) 5 m
1 km = 1000 m → 0.005 × 1000 = 5 m.
10. C) 3600 mL
1 L = 1000 mL → 3.6 × 1000 = 3600 mL.
11. A) 1.5 km
1 km = 1000 m → 1500 ÷ 1000 = 1.5 km.
12. C) centi-
Centi- = 0.01 or 1/100 of the base unit.
13. C) 4500 g
1 kg = 1000 g → 4.5 × 1000 = 4500 g.
14. B) 20 mL
1 L = 1000 mL → 0.02 × 1000 = 20 mL.
15. D) 0.85 m
1 m = 100 cm → 850 ÷ 100 = 0.85 m.
16. B) 100 m
Hecto- = 100 → 1 hectometer = 100 meters.
17. A) 3 mL
1 L = 1000 mL → 0.003 × 1000 = 3 mL.
18. B) 60 mg
1 g = 1000 mg → 0.06 × 1000 = 60 mg.
19. D) 1,000,000 m
Mega- = 1,000,000 times the base unit.
20. C) 2,750,000 mg
1 kg = 1,000,000 mg → 2.75 × 1,000,000 = 2,750,000 mg.
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